STENIOLIA. 93 



Antennae black above, the basal three joints pale yellow and the other joints fulvous 

 beneath ; the third joint one quarter longer than the fourth. Front and vertex densely 

 covered with long brownish, the face, labrum, and clypeus much more sparsely with 

 white, hairs, and bearing scattered punctures. The mandibles, labrum, clypeus, and 

 orbits broadly in front, narrowly behind, a conical mark on either side of the anterior 

 ocellus uniting in front, and a narrow line on the vertex behind, pale lemon-yellow ; the 

 marks on the front with an orange tinge ; the maxillae brownish. Thorax above bearing 

 a dense brownish pubescence ; the sides and sternum with longer pale cinereous hair. 

 Prothorax yellow, black in front, and with a large triangular mark laterally ; two short 

 lines on the mesonotum in front of the middle, a line extending along the sides from 

 the front of the tegulse to the scutellum, a short line in front of the scutellum, a conical 

 mark on either side of the scutellum, the postscutellum, two oblique lines (becoming 

 gradually wider towards the apex) on either side of the metanotum in front and almost 

 uniting, yellow, with an orange tinge ; mesothorax laterally and beneath yellow, the 

 sutures, an oblique line below the hind wings, and a large oval mark on the sternum, 

 black ; metapleurae black ; a small mark below the wings and a larger and more irregu- 

 larly shaped one lower down, yellow. Thorax closely and rugosely punctured ; the sides 

 punctured, the punctures large and clearly separated ; the mesonotum depressed in the 

 centre. Abdomen shining, the base aciculated ; the apical segment covered with large 

 punctures ; the base bearing fuscous hairs. Basal segment black, a large oblique mark 

 on either side, and two marks in the centre at the apex, yellow ; the second segment 

 similarly marked, but with the lateral marks much larger and the central ones longer 

 and transverse, not oblique ; the third and fourth segments bear lines which are brown 

 at the basal half, and become narrowed towards their apices, which are turned up, the 

 two lines being almost united ; a similarly shaped line is on either side of the fifth 

 segment, the two lines being completely united ; the last segment is yellow, with a 

 black line down the centre, and bears a few black bristles at the base, beneath it is 

 yellow, with an interrupted black line down the middle. Legs yellow, the hind tibiae 

 and tarsi almost white, and covered with a white pile ; the femora lined with black 

 above, and with a distinct brownish-red tinge. 



Length 15-17 millim. 



In the male the two or three basal joints of the antennae only are yellow beneath, 

 the others being entirely black ; the marks at the ocelli are very small ; the vertex is 

 entirely black, wanting the yellow line; there are two small black marks on the 

 clypeus ; the prothorax is black, lined with pale yellow at the edges ; the mesonotum 

 is generally without yellow marks ; the lateral marks on the scutellum are small ; there 

 is only a small yellow mark on either side of the metanotum; and the pleurae are 

 entirely black, except the tubercles. The basal segment of the abdomen has an oblique 

 line at the base and two pear-shaped transverse marks in the middle ; the second and 

 third segments have oblique lateral lines, and two central marks which are broader 

 than long and truncated at the ends; the lateral marks on the other segments are 



